Air Cylinders

In its simplest form, an Air Cylinder is a device that translates compressed air into linear motion. It's the pneumatic world's answer to the question, "How can I make this thing move in a straight line without complicated mechanics or breaking the bank?"

Dual Guide Rod Air Cylinders

In contrast to a standard, single-rod pneumatic cylinder, a dual rod cylinder integrates two parallel rods, providing higher stability. This is particularly useful in applications demanding precise linear motion, minimizing rod rotation or lateral loads.

From the textile and chemical sectors to mineral, electric power, and papermaking industries, double rod cylinders are a jack-of-all-trades. Their superior stability and precision make them ideal for various applications where utmost accuracy is a non-negotiable.

Remember, a pneumatic solution should be as unique as your industrial needs. With the availability of various sizes, materials, and mounting options, dual rod cylinders can be tailor-made to fit seamlessly into your operations.

In essence, Dual Guide Rod Air Cylinders incorporate two parallel guide rods instead of a single one, which provides:

  • Enhanced Stability: Eliminates rotational motion and enhances load-bearing capacity.
  • Increased Precision: Allows for more accurate and smooth linear movement.

What is the advantage of a double rod cylinder?

1. Symmetrical Force

  • Essence: Equal force output on both sides for a truly balanced act.
  • Implication: Think of it as a well-tuned duet where both singers hit the high notes together.

2. Versatile Mounting

  • Essence: Greater mounting options for complex setups.
  • Implication: It's like having a universal power adapter when traveling; it fits just about anywhere.

3. High Stability

  • Essence: Two rods ensure stability against lateral and rotational forces.
  • Implication: It’s the tripod in a world of monopods, providing that much-needed balance.

4. Space Efficiency

  • Essence: Double the force, same space—a feat of engineering indeed.
  • Implication: Imagine a studio apartment that somehow offers the amenities of a penthouse.

5. Multi-Application Versatility

  • Essence: The balanced forces make it ideal for multiple uses, from automation to medical equipment.
  • Implication: A multi-tool for the pneumatic realm, adaptable and ready for any task.

6. Balanced Loading

  • Essence: The ability to handle loads on both ends for symmetric applications.
  • Implication: Imagine a set of perfectly balanced scales—equilibrium is the name of the game.

7. Durability

  • Essence: Even wear across components extends the lifespan.
  • Implication: Longevity is in its DNA, much like a vintage wine that ages gracefully.

What is a double rod cylinder?

A Double Rod Cylinder is a variant of a pneumatic cylinder that features a piston rod extending from both ends of the actuator, rather than just one. This design allows for equal force and speed to be applied in both extend and retract strokes.

What is the difference between single and double rod cylinders?

Single Rod Cylinders


  • Simplicity: One rod extending from one end of the actuator.
  • Compact Design: Takes up less space due to its singular focus.


  • Cost-Effectiveness: Generally less expensive to manufacture and maintain.
  • Ease of Installation: Simplicity often translates to straightforward installation.


  • Unbalanced Force: Provides force in one direction, which might cause lateral stresses.
  • Limited Mounting: Generally less versatile in terms of mounting options.

Double Rod Cylinders


  • Symmetry: Features rods extending from both ends of the actuator.
  • Balanced Design: Equal forces and speeds on both extend and retract strokes.


  • Versatility: Adaptable to more complex setups due to balanced forces.
  • Higher Stability: Superior against lateral and rotational forces, making it ideal for precise tasks.


  • Cost: Typically more expensive due to the additional rod and the engineering required.
  • Space Requirement: Might require more room for installation due to the double rods.

What are the three types of pneumatic cylinders?

1. Single Acting Cylinders


  • Simplicity Personified: A single port for compressed air to enter and exit.
  • One-Way Street: Generates force in one direction only—typically the "out" stroke.

Ideal For

  • Simple Push/Pull Applications: Such as door opening mechanisms.
  • Cost-Sensitive Projects: If your budget is tighter than a snare drum, this could be your go-to option.


  • Limited Control: You only control the "out" stroke, as a spring usually handles the return.

2. Double Acting Cylinders


  • Two Ports: One for the 'out' stroke, another for the 'in.'
  • Two-Way Street: Generates force in both directions, offering more control.

Ideal For

  • Dynamic Applications: Where control over both extend and retract strokes is essential.
  • High-Speed Operations: Such as conveyor belt systems or automated assembly lines.


  • Increased Complexity: Requires more intricate valving and controls.

3. Double Rod Cylinders


  • Dual Rods: Extend from both ends for balanced force and motion.
  • Versatile Mounting: Thanks to the symmetrical design.

Ideal For

  • Precision Work: Such as in medical or micro-manufacturing applications.
  • Stable and Balanced Operations: Useful where lateral and rotational forces are a concern.


  • Higher Costs: The dual rod design tends to drive up both initial and maintenance costs.

Applications of Double Rod Cylinders

Textile Industry

  • Automated Weaving: The dual rods offer extra stability, ensuring the loom works with impeccable precision.
  • Material Handling: Their robust construction makes them ideal for moving heavy rolls of fabric without risk of tilting.

Chemical Industry

  • Precision Mixing: When mixing volatile substances, the stability provided by double rods ensures accurate and safe operations.
  • Automated Filling: For filling containers with liquid chemicals, the double rod cylinders provide additional stability, reducing spill risks.

Mineral Industry

  • Sorting and Processing: For processes requiring high precision, like sorting minerals based on size or weight, double rod cylinders can be indispensable.
  • Conveyor Systems: They offer more balanced movement, making them ideal for conveyor belts handling unevenly distributed loads.

Electric Power Industry

  • Switchgear Operation: The double rods offer better control, ensuring safe and efficient operation of electrical switchgear.
  • Automated Monitoring Systems: In applications where sensors must be moved precisely, the double rods can be a boon.

Papermaking Industry

  • Roll Handling: When dealing with heavy rolls of paper, the added stability from double rod cylinders ensures safer and more efficient operations.
  • Cutting Mechanisms: Precision is key in cutting processes, and the stability offered by these cylinders makes them an excellent choice.

Additional Applications

  • Automotive Assembly Lines: For tasks like windshield installation, where precision is critical, double rod cylinders excel.
  • Food and Beverage: In packaging and filling applications, they offer the required precision to handle fragile items like glass bottles.
  • Medical Equipment: In devices requiring highly stable and precise movement, such as surgical robots, double rod cylinders can be crucial.

The RIH Advantage

As a distinguished Air Cylinder Manufacturer, we at RIH offer double rod cylinders that are the epitome of engineering refinement.

  • Custom Solutions: Specifically tailored to meet your varied industrial needs.
  • Quality: Offering first-class products, truly your paper boat plate in an ocean of options.

For those in the market for mechanical finesse, double rod cylinders should sit atop your shortlist. Feel free to contact us for a deeper dive into this pneumatic marvel.